[#MDEV-21379] Valgrind Invalid read in tree_walk_left_root

10.1 1f1e3ce8 valgrind
$ perl ./mtr --valgrind main.func_gconcat

main.func_gconcat [ fail ] Found warnings/errors in server log file!
Test ended at 2019-12-22 01:18:43
line
==29619== Thread 6:
==29619== Invalid read of size 8
==29619== at 0x4C32640: memmove (vg_replace_strmem.c:1252)
==29619== by 0xEFAEAB: tree_insert (tree.c:255)
==29619== by 0x8F8F62: copy_to_tree (item_sum.cc:3327)
==29619== by 0xEFBB5A: tree_walk_left_root_right (tree.c:551)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== Address 0xdc490c8 is 0 bytes after a block of size 296 alloc'd
==29619== at 0x4C2BBAF: malloc (vg_replace_malloc.c:299)
==29619== by 0xEE90BB: my_malloc (my_malloc.c:101)
==29619== by 0xED9FC5: alloc_root (my_alloc.c:188)
==29619== by 0xEFAE0D: tree_insert (tree.c:243)
==29619== by 0x8F9531: Item_func_group_concat::add() (item_sum.cc:3416)
==29619== by 0x8FAD3C: Aggregator_simple::add() (item_sum.h:672)
==29619== by 0x668DAC: Item_sum::aggregator_add() (item_sum.h:521)
==29619== by 0x668C97: Item_sum::reset_and_add() (item_sum.h:412)
==29619== by 0x65F428: init_sum_functions(Item_sum, Item_sum) (sql_select.cc:23660)
==29619== by 0x656247: end_send_group(JOIN, st_join_table, bool) (sql_select.cc:19927)
==29619== by 0x65361B: evaluate_join_record(JOIN, st_join_table, int) (sql_select.cc:18812)
==29619== by 0x652F0F: sub_select(JOIN, st_join_table, bool) (sql_select.cc:18589)
==29619== by 0x652764: do_select(JOIN, List<Item>, TABLE, Procedure) (sql_select.cc:18244)
==29619== by 0x62C2DD: JOIN::exec_inner() (sql_select.cc:3277)
==29619== by 0x6295AA: JOIN::exec() (sql_select.cc:2564)
==29619== by 0x62CB02: mysql_select(THD, Item*, TABLE_LIST, unsigned int, List<Item>&, Item, unsigned int, st_order, st_order, Item, st_order, unsigned long long, select_result, st_select_lex_unit, st_select_lex) (sql_select.cc:3501)
==29619== Invalid read of size 8
==29619== at 0x4C3264E: memmove (vg_replace_strmem.c:1252)
==29619== by 0xEFAEAB: tree_insert (tree.c:255)
==29619== by 0x8F8F62: copy_to_tree (item_sum.cc:3327)
==29619== by 0xEFBB5A: tree_walk_left_root_right (tree.c:551)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== Address 0xe520330 is 0 bytes after a block of size 304 alloc'd
==29619== at 0x4C2BBAF: malloc (vg_replace_malloc.c:299)
==29619== by 0xEE90BB: my_malloc (my_malloc.c:101)
==29619== by 0xED9FC5: alloc_root (my_alloc.c:188)
==29619== by 0xEFAE0D: tree_insert (tree.c:243)
==29619== by 0x8F8F62: copy_to_tree (item_sum.cc:3327)
==29619== by 0xEFBB5A: tree_walk_left_root_right (tree.c:551)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)
==29619== by 0xEFBB0B: tree_walk_left_root_right (tree.c:550)

[MDEV-21379] Valgrind Invalid read in tree_walk_left_root_right Created: 2019-12-21 Updated: 2023-05-09 Resolved: 2023-05-09
Status:	Closed
Project:	MariaDB Server
Component/s:	Server, Tests
Affects Version/s:	10.1
Fix Version/s:	N/A

[MDEV-21379] Valgrind Invalid read in tree_walk_left_root_right Created: 2019-12-21 Updated: 2023-05-09 Resolved: 2023-05-09